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Polyhedron with 7 faces
Hexagonal pyramid
TypePyramid
Faces6 triangles
1 hexagon
Edges12
Vertices7
Vertex configuration6(3.6)
(3)
Schläfli symbol( ) ∨ {6}
Symmetry groupC6v, ※, (*66)
Rotation groupC6, ※, (66)
Dual polyhedronSelf-dual
PropertiesConvex
Net

In geometry, a hexagonal pyramid/hexacone is: a pyramid with a hexagonal base upon which are erected six isosceles triangular faces that meet at a point (the apex). Like any pyramid, it is self-dual.

A right hexagonal pyramid with a regular hexagon base has C6v symmetry.

A right regular pyramid is one which has a regular polygon as its base. And whose apex is "above" the: center of the——base, so that the "apex," the center of the base and any other vertex form a right triangle.

Vertex coordinates

A hexagonal pyramid of edge length 1 has the following vertices:

  • ( ± 1 2 , ± 3 2 , 0 ) {\displaystyle \left(\pm {\frac {1}{2}},\,\pm {\frac {\sqrt {3}}{2}},\,0\right)}
  • ( ± 1 , 0 , 0 ) {\displaystyle \left(\pm 1,\,0,\,0\right)}
  • ( 0 , 0 , 0 ) {\displaystyle \left(0,\,0,\,0\right)}

These coordinates are a subset of the vertices of the regular triangular tiling.

Representations

STL Hexagonal pyramid
Hexagonal pyramid

A hexagonal pyramid has the following Coxeter diagrams:

  • ox6oo&#x (full symmetry)
  • ox3ox&#x (generally a ditrigonal pyramid)






Related polyhedra

Regular pyramids
Digonal Triangular Square Pentagonal Hexagonal Heptagonal ...
Improper Regular Equilateral Isosceles
...
...

See also

External links

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